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Huang, MQ; Lee, JP; Liu, C; Song, HS; Lee, JP , Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea.
Leading Isgur-Wise form factor of Lambda(b) -> Lambda(c1) transition using QCD sum rules
Source PublicationPHYSICS LETTERS B
KeywordQuark Effective Theory Effective Field-theory Heavy-quark Charmed Baryon Weak Decays B-decay Hadrons Mesons Order Alpha(s)
AbstractThe leading Isgur-Wise form factor xi (y) parametrizing the semileptonic transitions Lambda (b) --> Lambda (1/2)(cl)l<()over bar> and Lambdab --> Lambda (3/2)(cl)l<()over bar> is calculated by using the QCD sum rules in the framework of heavy quark effective theory, where Lambda (1/2)(cl) and Lambda (3/2)(cl) is the orbitaIly excited charmed baryon doublet with J(P) = (1(-)/2, 3(-)/2). The interpolating currents with transverse covariant derivative are adopted for Lambda (1/2)(cl) and Lambda (3/2)(cl) in the analysis. The slope parameter rho (2) in linear approximation of the Isgur-Wise function is obtained to be rho (2) = 2.01, and the interception to be xi (1) = 0.29. The decay branching ratios are estimated. (C) 2001 Published by Elsevier Science B.V.
2001
ISSN0370-2693
Volume502Issue:40912Pages:133-139
Subject AreaPhysics
Indexed BySCI
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12797
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLee, JP , Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea.
Recommended Citation
GB/T 7714
Huang, MQ,Lee, JP,Liu, C,et al. Leading Isgur-Wise form factor of Lambda(b) -> Lambda(c1) transition using QCD sum rules[J]. PHYSICS LETTERS B,2001,502(40912):133-139.
APA Huang, MQ,Lee, JP,Liu, C,Song, HS,&Lee, JP , Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea..(2001).Leading Isgur-Wise form factor of Lambda(b) -> Lambda(c1) transition using QCD sum rules.PHYSICS LETTERS B,502(40912),133-139.
MLA Huang, MQ,et al."Leading Isgur-Wise form factor of Lambda(b) -> Lambda(c1) transition using QCD sum rules".PHYSICS LETTERS B 502.40912(2001):133-139.
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